Pipe-wrench.



No. 674,399; Patented May 2|, l90l.

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PIPE wnancuf (Application filed Dec. 8, 1900.)

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NITED STATES PATENT OFFICE.

EUGENE OHILDS, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO TRIMONT MAN- UFACTURING COMPANY, OF SAME PLACE AND PORTLAND, MAINE.

PIPE-WRENCH.

SZEhClFICATION forming part of Letters Patent No. 674,399, dated May 21, 1901.

Application filed December 8, 1900. Serial No. 39,134. (No model.)

To all whom it may concern:

Be it known that I, Encnnn OHILDS, a citizen of the United States, residing at Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Pipe- Wrenches, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to a novel pipewrench of the class employing a flexible grasping member, which may be a chain or band to embrace the pipe, the object of the invention being to quickly adjust the chain or band to the pipe and lock it firmly while the wrench is moved to turn the pipe.

In my invention the wrench-handle is embraced by a loop-shaped slide, the inner portion of which is adapted to engage one edge of the handle, the slide at the opposite inner end of the yoke having a surface preferably toothed to engage teeth at the opposite edge of the bar, said slide having at its end means to engage the chain or band. A spring cooperating with the slide acts normally to tip the slide on the handle, so that it will be kept in operative engagement therewith, the compression of the spring enabling the slide to occupy a position more nearly at right angles to the length of the handle, in which position the slide may be moved freely on the handle to draw the chain or belt connected with it closely about the pipe to be grasped and turned by the wrench.

Figure 1 shows in side elevation a wrench embodying my invention, the chain embracing a pipe. Fig. 2 shows the slide detached, and Fig. 3 shows the end of the head of the wrench.

The wrench-handle A, of any desired length, in the form in which I have chosen toillustrate my invention, is provided with a head a, to which is jointed at a a toothed contact-block b, forming the first link of a suitable chain or band B, having at its free end a connection I), shown as a metallic loop or eye adapted to engage a suitable stud or hook 0, carried by a loop-shaped slide 0. This slide fits the handle loosely and, as shown, is provided with a lever 0, extended therefrom, a spring (1, attached to said slide or lever, acting against one edge of said handle and serving to keep said slide normally in the position shown by full lines, Fig. 1, in which position the edge 2 of the slide contacts with the under edge of the bandle and the toothed part 3 in engagement with the teeth 4 at the opposite edge of the handle. When the slide occupies its normal or full-line position at an angle with relation to the length of the handle other than a right angle, the slide so engages the handle that the greater the strain on the slide by the chain the firmer the engagement of the slide with the handle. By depressing the lever to oocupy the dotted-line position, Fig. 1, thus putting the slide substantially at right angles to the length of the handle, the slide may be slid quickly and freely in either direction on the handle to tighten up the chain or band about the pipe P or to slacken the chain or band to disconnect it from the hook c.

To apply the wrench to a pipe, the chain will be passed about the pipe and the connection I) engaged with the hook, and then the operator, depressing the lever 0 into the dottedline position, will move the slide quickly along the handle toward its right-hand end, Fig. 1, drawing the chain snugly about the pipe, and then the lever will be released, enabling the spring (1 to tip the slide and put its teeth in engagement with the teeth 4 of the handle, if such teeth are used, as I prefer.

Fig. 1 shows the wrench applied to a pipe. To turn the pipe, the handle will be moved in the direction of the arrow, which will enable the link 6 to meet the shoulder 61) of the head, and the chain will bind the pipe firmly and cause it to be turned.

The slide is an improvement over a nut rotatable on a threaded shank because of the quicker adjustment of the slide, the wrench being more desirable in proportion to the quickness with which it may be manipulated or put onto or taken from a pipe.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A pipe-wrench composed of a handle having at one enda head, a flexible grasping member, a slide mounted on said handle and completely surrounding the same loosely, a spring normally acting to tip said slide on said handle to bring its engaging portion into binding contact with the handle, said slide having a rigid hook to be engaged by said grasping member, the movement of the slide on said handle enabling the grasping member to embrace snugly or release the pipe.

2, A pipe-Wrench composed of a handle toothed at one edge, and having at one end a head, a loop-shaped slide embracing said handle and having a tooth, a hook, and an extended lever, a spring acting normally to tip said slide on said handle that a tooth thereof may engage a tooth of the handle, and a flexible grasping member connected at one end with the head of the handle and at its other end loosely with the hook of the slide.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. v

EUGENE OHILDS.

Witnesses:

GEO. W. GREGORY, EDITH M. STODDARD. 

